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<a name="GMemoryInputStream"></a><div class="titlepage"></div>
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<h2><span class="refentrytitle"><a name="GMemoryInputStream.top_of_page"></a>GMemoryInputStream</span></h2>
<p>GMemoryInputStream — Streaming input operations on memory chunks</p>
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<div class="refsect1">
<a name="GMemoryInputStream.functions"></a><h2>Functions</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> *
</td>
<td class="function_name">
<a class="link" href="GMemoryInputStream.html#g-memory-input-stream-new" title="g_memory_input_stream_new ()">g_memory_input_stream_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> *
</td>
<td class="function_name">
<a class="link" href="GMemoryInputStream.html#g-memory-input-stream-new-from-data" title="g_memory_input_stream_new_from_data ()">g_memory_input_stream_new_from_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> *
</td>
<td class="function_name">
<a class="link" href="GMemoryInputStream.html#g-memory-input-stream-new-from-bytes" title="g_memory_input_stream_new_from_bytes ()">g_memory_input_stream_new_from_bytes</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GMemoryInputStream.html#g-memory-input-stream-add-data" title="g_memory_input_stream_add_data ()">g_memory_input_stream_add_data</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="GMemoryInputStream.html#g-memory-input-stream-add-bytes" title="g_memory_input_stream_add_bytes ()">g_memory_input_stream_add_bytes</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="GMemoryInputStream.html#GMemoryInputStream-struct" title="GMemoryInputStream">GMemoryInputStream</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.object-hierarchy"></a><h2>Object Hierarchy</h2>
<pre class="screen">    <a href="https://developer.gnome.org/gobject/unstable/gobject-The-Base-Object-Type.html#GObject">GObject</a>
    <span class="lineart">╰──</span> <a class="link" href="GInputStream.html" title="GInputStream">GInputStream</a>
        <span class="lineart">╰──</span> GMemoryInputStream
</pre>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.implemented-interfaces"></a><h2>Implemented Interfaces</h2>
<p>
GMemoryInputStream implements
 <a class="link" href="GSeekable.html" title="GSeekable">GSeekable</a> and  <a class="link" href="GPollableInputStream.html" title="GPollableInputStream">GPollableInputStream</a>.</p>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.includes"></a><h2>Includes</h2>
<pre class="synopsis">#include &lt;gio/gio.h&gt;
</pre>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.description"></a><h2>Description</h2>
<p><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> is a class for using arbitrary
memory chunks as input for GIO streaming input operations.</p>
<p>As of GLib 2.34, <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> implements
<a class="link" href="GPollableInputStream.html" title="GPollableInputStream"><span class="type">GPollableInputStream</span></a>.</p>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="g-memory-input-stream-new"></a><h3>g_memory_input_stream_new ()</h3>
<pre class="programlisting"><a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> *
g_memory_input_stream_new (<em class="parameter"><code><span class="type">void</span></code></em>);</pre>
<p>Creates a new empty <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a>.</p>
<div class="refsect3">
<a name="id-1.4.7.13.9.2.5"></a><h4>Returns</h4>
<p> a new <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g-memory-input-stream-new-from-data"></a><h3>g_memory_input_stream_new_from_data ()</h3>
<pre class="programlisting"><a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> *
g_memory_input_stream_new_from_data (<em class="parameter"><code>const <span class="type">void</span> *data</code></em>,
                                     <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gssize"><span class="type">gssize</span></a> len</code></em>,
                                     <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy</code></em>);</pre>
<p>Creates a new <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> with data in memory of a given size.</p>
<div class="refsect3">
<a name="id-1.4.7.13.9.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p> input data. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=len][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of the data, may be -1 if <em class="parameter"><code>data</code></em>
is a nul-terminated string</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p> function that is called to free <em class="parameter"><code>data</code></em>
, or <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.7.13.9.3.6"></a><h4>Returns</h4>
<p> new <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> read from <em class="parameter"><code>data</code></em>
of <em class="parameter"><code>len</code></em>
bytes.</p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g-memory-input-stream-new-from-bytes"></a><h3>g_memory_input_stream_new_from_bytes ()</h3>
<pre class="programlisting"><a class="link" href="GInputStream.html" title="GInputStream"><span class="returnvalue">GInputStream</span></a> *
g_memory_input_stream_new_from_bytes (<em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> *bytes</code></em>);</pre>
<p>Creates a new <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> with data from the given <em class="parameter"><code>bytes</code></em>
.</p>
<div class="refsect3">
<a name="id-1.4.7.13.9.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>bytes</p></td>
<td class="parameter_description"><p>a <a href="https://developer.gnome.org/glib/unstable/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.4.7.13.9.4.6"></a><h4>Returns</h4>
<p> new <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> read from <em class="parameter"><code>bytes</code></em>
</p>
</div>
<p class="since">Since: <a class="link" href="api-index-2-34.html#api-index-2.34">2.34</a></p>
</div>
<hr>
<div class="refsect2">
<a name="g-memory-input-stream-add-data"></a><h3>g_memory_input_stream_add_data ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
g_memory_input_stream_add_data (<em class="parameter"><code><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> *stream</code></em>,
                                <em class="parameter"><code>const <span class="type">void</span> *data</code></em>,
                                <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Basic-Types.html#gssize"><span class="type">gssize</span></a> len</code></em>,
                                <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Datasets.html#GDestroyNotify"><span class="type">GDestroyNotify</span></a> destroy</code></em>);</pre>
<p>Appends <em class="parameter"><code>data</code></em>
 to data that can be read from the input stream</p>
<div class="refsect3">
<a name="id-1.4.7.13.9.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>data</p></td>
<td class="parameter_description"><p> input data. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="Parameter points to an array of items."><span class="acronym">array</span></acronym> length=len][<acronym title="Generics and defining elements of containers and arrays."><span class="acronym">element-type</span></acronym> guint8][<acronym title="Free data after the code is done."><span class="acronym">transfer full</span></acronym>]</span></td>
</tr>
<tr>
<td class="parameter_name"><p>len</p></td>
<td class="parameter_description"><p>length of the data, may be -1 if <em class="parameter"><code>data</code></em>
is a nul-terminated string</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>destroy</p></td>
<td class="parameter_description"><p> function that is called to free <em class="parameter"><code>data</code></em>
, or <a href="https://developer.gnome.org/glib/unstable/glib-Standard-Macros.html#NULL:CAPS"><code class="literal">NULL</code></a>. </p></td>
<td class="parameter_annotations"><span class="annotation">[<acronym title="NULL is OK, both for passing and for returning."><span class="acronym">allow-none</span></acronym>]</span></td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="g-memory-input-stream-add-bytes"></a><h3>g_memory_input_stream_add_bytes ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
g_memory_input_stream_add_bytes (<em class="parameter"><code><a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a> *stream</code></em>,
                                 <em class="parameter"><code><a href="https://developer.gnome.org/glib/unstable/glib-Byte-Arrays.html#GBytes"><span class="type">GBytes</span></a> *bytes</code></em>);</pre>
<p>Appends <em class="parameter"><code>bytes</code></em>
 to data that can be read from the input stream.</p>
<div class="refsect3">
<a name="id-1.4.7.13.9.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table class="informaltable" width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>stream</p></td>
<td class="parameter_description"><p>a <a class="link" href="GMemoryInputStream.html" title="GMemoryInputStream"><span class="type">GMemoryInputStream</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>bytes</p></td>
<td class="parameter_description"><p>input data</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<p class="since">Since: <a class="link" href="api-index-2-34.html#api-index-2.34">2.34</a></p>
</div>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="GMemoryInputStream-struct"></a><h3>GMemoryInputStream</h3>
<pre class="programlisting">typedef struct _GMemoryInputStream GMemoryInputStream;</pre>
<p>Implements <a class="link" href="GInputStream.html" title="GInputStream"><span class="type">GInputStream</span></a> for arbitrary memory chunks.</p>
</div>
</div>
<div class="refsect1">
<a name="GMemoryInputStream.see-also"></a><h2>See Also</h2>
<p><a class="link" href="GMemoryOutputStream.html" title="GMemoryOutputStream"><span class="type">GMemoryOutputStream</span></a></p>
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